Off of the East Coast of South America satellite imagery is showing a potential tropical cyclone developing. The South Atlantic Ocean is the rarest place among the world's oceans, outside of the Arctic, for Tropical Cyclone development. There have been only three recorded tropical cyclones. In 1991, one formed off of the coast of Angola in April. In 2004, there were two. The first, in January, made landfall near Salvador, Brazil. The second, called Catalina, made landfall in the Catalina province of Brazil as a hurricane. Now, the Naval Research Labratory is tracking and monitoring this system shown above and...